Best-in-Class performance by Mercedes-Benz® coupled with the quality and design you expect from Airstream, the Interstate 24X provides the ultimate adventure van experience. With a 3.0L V6 Turbo Diesel engine that packs 188 horsepower and 325 lbs. of torque, you can confidently hit the end of the blacktop and explore more rugged terrains - all while towing up to 5,000 lbs.